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🌎  Greenwich, United Kingdom [change]

Comets

Browse and discover detailed information about 207 of the most interesting comets. Comets are listed in order of decreasing brightness.

Visibility from selected location  = visible to the naked eye
 = binocular, brighter than 10th magnitude
= current altitude ≥ 30°   = current altitude < 30°   = below the horizon
Location: Greenwich, United Kingdom [change]

Comet P/2016 J3 (STEREO = 2021 A3)

P/2016 J3 (STEREO)
R.A: 17h 23m 42s   Dec: -21° 26’ 59”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 31.5 (JPL)  fading
in Ophiucus   object currently below the horizon

Comet P/2014 L2 (NEOWISE)

P/2014 L2 (NEOWISE)
R.A: 10h 23m 24s   Dec: +09° 59’ 17”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 31.9 (JPL) 
in Leo   current altitude less than 30 degrees above the horizon

Comet 92P/Sanguin

92P/Sanguin
R.A: 11h 42m 09s   Dec: -02° 11’ 38”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 31.9 (JPL) 
in Virgo   object currently below the horizon

Comet C/2021 A4 (NEOWISE)

C/2021 A4 (NEOWISE)
R.A: 21h 42m 40s   Dec: -50° 26’ 08”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 32.4 (JPL)  fading
in Indus   object currently below the horizon

Comet McNaught (C/2006 P1)

C/2006 P1 (McNaught)
R.A: 17h 00m 22s   Dec: -53° 22’ 58”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 32.5 (JPL) 
in Ara   object currently below the horizon

Comet 141P/Machholz 2

141P/Machholz 2
R.A: 12h 46m 23s   Dec: -16° 41’ 13”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 32.6 (JPL)  fading
in Corvus   object currently below the horizon

Comet 255P/Levy

255P/Levy
R.A: 20h 33m 29s   Dec: -10° 00’ 09”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 32.9 (JPL)  brightening
in Capricornus   object currently below the horizon

Comet 62P/Tsuchinshan 1

62P/Tsuchinshan 1
R.A: 20h 39m 42s   Dec: -22° 24’ 42”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 33.5 (JPL) 
in Capricornus   object currently below the horizon

Comet 34D/Gale (Lost)

34D/Gale (Lost)
R.A: 07h 08m 02s   Dec: +30° 46’ 21”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 33.7 (JPL) 
in Gemini   current altitude greater than 30 degrees above the horizon

Comet 213P/Van Ness

213P/Van Ness
R.A: 11h 59m 13s   Dec: -06° 42’ 51”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 33.7 (JPL)  brightening
in Virgo   object currently below the horizon

Comet C/2016 U1 (NEOWISE)

C/2016 U1 (NEOWISE)
R.A: 02h 40m 57s   Dec: -10° 23’ 42”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 33.8 (JPL)  fading
in Cetus   current altitude less than 30 degrees above the horizon

Comet C/1996 B2 (Hyakutake)

C/1996 B2 (Hyakutake)
R.A: 13h 53m 23s   Dec: -58° 28’ 00”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 34.3 (JPL) 
in Centaurus   object currently below the horizon

Comet 153P/Ikeya-Zhang

153P/Ikeya-Zhang
R.A: 19h 51m 53s   Dec: -31° 57’ 14”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 35.4 (JPL)  fading
in Sagittarius   object currently below the horizon

Comet 109P/Swift-Tuttle

109P/Swift-Tuttle
R.A: 09h 45m 32s   Dec: -20° 50’ 05”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 36.6 (JPL) 
in Hydra   object currently below the horizon

Comet 72P/Denning-Fujikawa

72P/Denning-Fujikawa
R.A: 14h 49m 21s   Dec: -18° 34’ 23”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 46.1 (JPL)  brightening
in Libra   object currently below the horizon

Comet 55P/Tempel-Tuttle

55P/Tempel-Tuttle
R.A: 15h 28m 35s   Dec: -18° 10’ 45”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 47.2 (JPL) 
in Libra   object currently below the horizon

Comet 27P/Crommelin

27P/Crommelin
R.A: 17h 17m 47s   Dec: -18° 04’ 55”
Observed Magnitude N.A. (COBS)
Estimated Magnitude 53.4 (JPL) 
in Ophiucus   object currently below the horizon

Comet 205P/Giacobini

205P/Giacobini
R.A: 19h 24m 41s   Dec: -14° 00’ 38”
Observed Magnitude N.A. (COBS)
Estimated Magnitude N.A. (JPL) 
in Sagittarius   object currently below the horizon

Comet Great January Comet of 1910 (C/1910 A1)

C/1910 A1 (Great January Comet)
R.A: 20h 02m 28s   Dec: +06° 32’ 35”
Observed Magnitude N.A. (COBS)
Estimated Magnitude N.A. (JPL) 
in Aquila   object currently below the horizon

Comet Skjellerup-Maristany (C/1927 X1)

C/1927 X1 (Skjellerup-Maristany)
R.A: 17h 08m 13s   Dec: -65° 19’ 28”
Observed Magnitude N.A. (COBS)
Estimated Magnitude N.A. (JPL) 
in Ara   object currently below the horizon
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